2. [5 pts] You hear a loud shout from your friend at 80 db. If you...

Question

Question

2. [5 pts] You hear a loud shout from your friend at 80 db. If you move twice as far away from your friend, how loud is the shout?

science physics

Answer 1

Answer #1

We will use the sound attenuation formula

Where

S₁ = Sound pressure level at point 1 = 80 db

r₂ = distance of point 2 = 2 x distance at point 1 = 2r₁

So, Sound pressure level at point 2, S₂ = 80 - 20 log(2r₁/r₁) db = 80 - 20 log(2) db = 80 - 6.02 db = 73.98 db

So, the shout will now be heard at 73.98 db-----------------------(Answer)

Answer 2

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